(1 College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China) (2 Institute of Materials Science and Technology, Sichuan University, Chengdu 610064, China) (3 State Key Laboratory of Polymer Materials Engineering (Sichuan University), Sichuan University, Chengdu 610065, China)
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DOI:
10.7502/j.issn.1674-3962.2015.12.01
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Abstract:
As a chemical structurally modified substance of polyphenylene sulfide (PPS), Poly (arylene sulfide sulfone) (PASS) exhibits outstanding mechanical properties, heat resistance, dimensional stability, corrosion resistance, flame retardancy and electrical properties, etc. Because of the superiority, PASS has a good application prospect in the fields of environmental protection, military industry, electrical, machinery and aviation. This review introduced the physical properties, melt modification and membrane preparation of PASS: (1) PASS/NMP crystal-solvent was discovered from the unstable phenomenon. And its formation, structure and crystallization behavior was studied systematically; (2) With the addition of PPS and compounding processing aids, the melt stability and fluidity of PASS were improved dramatically, which made it suitable for melt processing. The morphology of blends of PASS/PPS was studied at the same time, and the continuous fiber reinforced PASS composites were successfully prepared. (3)The solvent resistance of post-oxidated PASS membrane was explored. By adding various additives, PASS membranes with different pore size and cross-section morphology were prepared. Also antifouling PASS/TiO2 hybrid membranes were made via introducing PAA modified TiO2 nano-particles.